Question: Who is the {gene} for {genetic association} of {hepatitis C}
Paraphrase: Who is the {quality} for {hereditary affiliation} of {hepatitis C}
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P2293 wd:Q154869 . ?sbj wdt:P31 wd:Q7187 } 
Answer: ITPA, SLC22A3, RNF7, DEPDC5, MERTK, TSBP1, BTNL2, DDRGK1, CWH43, GLT8D2